
September 2011 Littelfuse POWR-GARD Products
www.littelfuse.com
POWR-GARD Fuse Datasheet
SPF SerieS Solar FUSeS
1000 VDC 1-30 Amperes
Specifications
Voltage Rating:
1000 VDC
Amperage Rating:
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30
Max. Interrupting Rating: 20 kA; Time Constant less than 2ms
Min. Interrupting Rating: 1.35x Current Rating
Material:
Body: Melamine
Caps: Copper Alloy
Operating Temperature:
See Rerating Curve
Approvals:
UL 2579 Listed (File No. E339112)
1-25 A IEC 60269-6
(VDE Approved to Certification No. 40033098)
Environmental:
RoHS Compliant
Country of Origin:
Mexico
Ordering Information
Description
The SPF Solar Protection Fuse series has been specifically
designed for the protection of photovoltaic (PV) systems.
This family of Midget style fuses (10 x 38 mm) can
safely protect PV modules and conductors from reverse-
overcurrent conditions.
As PV systems have grown in size, so have the
corresponding voltage requirements. This increase in
system voltage has typically been intended to minimize
power loss associated with long conductor runs. Standard
circuit protection devices are not designed to completely
protect photovoltaic panels. However, the SPF series is
UL Listed to safely interrupt faulted circuits up to this
demanding voltage level.
Littelfuse offers 13 ampere ratings to match specific
requirements in a variety of applications.
Features/Benefits
Designed to both UL and IEC photovoltaic specifications
UL 2579 Listed 1000 VDC maximum
1-30 A ratings available
20,000 A Interrupting Rating
Both PCB mount and dead-front holder options available
Recommended Fuseholders
LPHV Series
Applications
Combiner boxes
Inverters
Battery charge controllers
Dimensions in inches (mm)
Web Resources
Downloadable CAD drawings and other technical
information: www.littelfuse.com/spf
For a comprehensive overview of solar market solutions,
please visit: www.littelfuse.com/solar
aMPeraGe
CaTaloG nUMber
SYSTeM nUMber
2
SPF002
SPF002.T
8
SPF008
SPF008.T
30
SPF030
SPF030.T
30 (WITH PCB TABS)
SPF030R
SPF030.HXR
PCB Version
Ferrule Version
.06 (1.52)
.14
(3.56)
.04
(1.02)
.02 (.51)
1.53
(38.86)
.50 (12.7)
.12 (3.05)
MOUNTING HOLE
DETAIL
.406 (10.31)
.12
(3.05) .28
(7.11)
1.5 (38.1)
.406
(10.31)
Look for this logo to indicate products that are used in solar applications. Visit our website
www.littelfuse.com/solar for the latest updates on approvals, certifications, codes and standards.